21154663200110 has 32 divisors (see below), whose sum is σ = 41547240382464. Its totient is φ = 7691276196000.

The previous prime is 21154663200103. The next prime is 21154663200161. The reversal of 21154663200110 is 1100236645112.

It is a super-2 number, since 2×21154663200110² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15967646 + ... + 17241665.

It is an arithmetic number, because the mean of its divisors is an integer number (1298351261952).

Almost surely, 2^{21154663200110} is an apocalyptic number.

21154663200110 is a deficient number, since it is larger than the sum of its proper divisors (20392577182354).

21154663200110 is a wasteful number, since it uses less digits than its factorization.

21154663200110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33215120.

The product of its (nonzero) digits is 8640, while the sum is 32.

Adding to 21154663200110 its reverse (1100236645112), we get a palindrome (22254899845222).

The spelling of 21154663200110 in words is "twenty-one trillion, one hundred fifty-four billion, six hundred sixty-three million, two hundred thousand, one hundred ten".